168619941 has 16 divisors (see below), whose sum is σ = 285494400. Its totient is φ = 96354144.

The previous prime is 168619939. The next prime is 168619967. The reversal of 168619941 is 149916861.

It is not a de Polignac number, because 168619941 - 2¹ = 168619939 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168619741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445896 + ... + 446273.

It is an arithmetic number, because the mean of its divisors is an integer number (17843400).

Almost surely, 2^168619941 is an apocalyptic number.

It is an amenable number.

168619941 is a deficient number, since it is larger than the sum of its proper divisors (116874459).

168619941 is an equidigital number, since it uses as much as digits as its factorization.

168619941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892185 (or 892179 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 168619941 is about 12985.3741185997. The cubic root of 168619941 is about 552.4627204701.

The spelling of 168619941 in words is "one hundred sixty-eight million, six hundred nineteen thousand, nine hundred forty-one".